1841 1d red Imperf
4 Margin Lettered CG
Colnbrook Maltese Cross Cancel
Envelope from Colnbrook to Downham
ON REVERSE BLACK CIRCULAR COLNBROOK DATESTAMP DEC 18TH 1843
BLACK CIRCULAR SLOUGH DATESTAMP DEC. 18TH 1843.
RED CIRCULAR LONDON DATESTAMP DEC.19TH 1843.
One Penny Red, Type A1, Imperforate, Die I, Alphabet I,
1841 (February) Original Issue, Wmk Small Crown
S.G. 8a (2) 1d. red-brown on very blue paper (Ivory Head)
Plate 35